A study investigating the independence of linguistic abilities from each other, specifically the separability of syntax and semantics and the autonomy of syntactic abilities, is described. In the study, 30 individuals with Alzheimer's disease produced spontaneous conversations, completed sentences eliciting 16 grammatical forms, and when possible,…

Attempts to demonstrate that specifically language-impaired (SLI) children can be viewed as normal learners faced with systematically altered input. By assuming SLI children are limited in their ability to perceive and hypothesize grammatical morphemes that are low in phonetic substance, many features of SLI children's language can be explained by…

A study was conducted to test the utility of a protocol, consisting of 30 pragmatic parameters of language, to evaluate conversational speech from 157 subjects in six diagnostic groups. Four distinct profiles emerged separating the diagnostic groups within which differences in the distribution of pragmatic deficits were identified. (Author/KM)